Home
Class 12
CHEMISTRY
Physical and chemical adsorption respond...

Physical and chemical adsorption respond differently with a rise in temperature. What is this difference and why is it so? lt brgt

Text Solution

Verified by Experts

Both physical and chemical adsorption are of exothermic nature. The exlent of adsorptin is likely to decrease with rise in temperature. However, in chemical adsorption, the bonds present in the reactant species are to cleave initially and this if followed by adsorption. Since bond cleavage requires some energy, the chemical adsorption initially increase with rise in temperature and then decreases. Physicle adsorption however, decreases with rise in temperature. For details consult Section 5.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise QUESTION FROM BOARD EXAMINATIONS|110 Videos

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise HIGHER ORDER THINKING SKILLS (HOTS) QUESTIONA AND NUMERICAL PROBLEMS|11 Videos

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS|4 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|20 Videos

  • THE CARBON FAMILY

    DINESH PUBLICATION|Exercise Ultimate|11 Videos

Similar Questions

Explore conceptually related problems

Physical and chemical adsorption respond differenlty with a rise in temperature. What is this difference and why is it so? lt brgt

Why do physisorption and chermisorption behave differently with rise in temperature ?

Physical Adsorption|Chemical Adsoption

What is physical adsorption.

What is meant by chemical adsorption?

How physical adsorption will be effected by increase in temperature

Knowledge Check

  • How physical adsorption will be effected by increase in temperature

    A
    It will decrease
    B
    It will increase
    C
    First increase then decrease
    D
    None of these
    • DINESH PUBLICATION-SURFACE CHEMISTRY -ADDITIONAL IMPORTANT QUESTIONS
    1. Physical and chemical adsorption respond differently with a rise in te...

      Text Solution

      |

    2. Identify the dispersed phase and dispersion medium in the following ex...

      Text Solution

      |

    3. For drying H(2)S gas concentrated H(2)SO(4) can not be used why ?

      Text Solution

      |

    4. When freshly precipitated Fe(OH)(3) is shaken with aqueous solution of...

      Text Solution

      |

    5. A difference between diffusion and osmosis is

      Text Solution

      |

    6. 2-56 g of sulphur present in 100 mL of solution in colloidal form show...

      Text Solution

      |

    7. Why does a secondary rainbow have inverted colours ?

      Text Solution

      |

    8. on adding AgNO(3) solution into KI solution , a negatively charged col...

      Text Solution

      |

    9. The extent of adsorption of a gas depends upon the

      Text Solution

      |

    10. Which of the following gases can be liquefied easily ?

      Text Solution

      |

    11. The critical temperature of O(2) and N(2) are 155K and 126 K respecti...

      Text Solution

      |

    12. Gelatin is generally added to ice creams. Why?

      Text Solution

      |

    13. Which one of the following acts as the best coagulating agent for ferr...

      Text Solution

      |

    14. Lyophilic sols are more stable than lyophobic sols because their parti...

      Text Solution

      |

    15. Artificial rain can be caused by spraying charged dust particles over ...

      Text Solution

      |

    16. Ferric hydroxide sol is more readily conagulated by Na(3)PO(4) in comp...

      Text Solution

      |

    17. Delta is generally formed wheere river meets the ocean. How will you a...

      Text Solution

      |

    18. The layer of fat in the pans used for manufacturing soaps can be remov...

      Text Solution

      |

    19. Which out of the following solution having the same concentration will...

      Text Solution

      |

    20. 100 mL of a standard sol required 240 mg of starch for its protection ...

      Text Solution

      |